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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $598,478 | $297,477 | $1,785,156 | $3,812,068 | $3,255,593 | $23,556 | $10,263 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $5,612,674 | $8,164,843 | $13,027,009 | $40,060,912 | $27,421,194 | $9,957,473 | $9,821,128 |
| Total | $6,211,152 | $8,462,320 | $14,812,165 | $43,872,980 | $30,676,787 | $9,981,029 | $9,831,391 |
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